DNA Marker Index information for Chromosome: M Marker: J2a1a1d1aNames and Aliases for this DNA Marker: J2a1a1d1a.Chromosome Position in hg38 Human Genome assembly1: 7840.Chromosome Position in hg19 assembly2: 7840 .Ancestral marker allele value: C.Derived, alternative, or mutated marker allele value: T.